Karan Mehta created PHOENIX-4227:
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Summary: Row for "SYSTEM" schema is not created during
ConnectionQueryServicesImpl init
Key: PHOENIX-4227
URL: https://issues.apache.org/jira/browse/PHOENIX-4227
Project: Phoenix
Issue Type: Bug
Affects Versions: 4.12.0
Reporter: Karan Mehta
For every new schema created through Phoenix, a row containing the schema name
(with a 0x0 at the beginning and the end) is added to SYSTEM.CATALOG table.
This is used for by other statements such as "USE SCHEMA" or "CREATE SCHEMA" to
determine if the schema exists or not.
However when we turn on namespaces, SYSTEM tables are automatically migrated to
SYSTEM namespace in HBase. However an SYSTEM.CATALOG entry with the row
(\x0SYSTEM\x0) is not created. Thus other statements trying to use it might
receive a SCHEMA_NOT_FOUND_EXCEPTION even though the schema exists in the file.
A "CREATE SCHEMA SYSTEM" statement can create the corresponding row entry in
the SYSCAT table. This JIRA is to fix this behaviour and make it consistent for
all schemas across Phoenix.
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